Abstract
Abstract In Chapters 4 to 6 it was assumed that contact bodies undergo only small displacements and thus small rotations and small deformation. Consequently, we restricted ourselves to only a special class of contact-impact problems. In engineering applications, however, there are many extremely important contact-impact problems that cannot be included in that special class. In metal-forming processes, for example, workpieces may undergo quite large displacements, large rotations, and large deformation. Thus the behaviour of the workpiece presents both geometric non-linearity and material non-linearity. Many assumptions made in Chapters 4 to 6 no longer apply. Instead, we have to use the more general formulation in Chapter 3.
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